92 lines
2.4 KiB
Go
92 lines
2.4 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"net"
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"os"
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"strconv"
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"strings"
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"sync"
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"time"
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tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
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"github.com/probakowski/go-satel"
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)
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const (
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MessageNotMoreOftenThanSeconds = 15
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)
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type TgSender struct {
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bot *tgbotapi.BotAPI
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}
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func (self TgSender) Send(msg GenericMessage) error {
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to_send := tgbotapi.NewMessage(msg.chat_id, msg.msg)
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_, err := self.bot.Send(to_send)
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return err
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}
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func send_tg_message(tg_events chan GenericMessage, msg string, chat_ids []int64) {
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for _, chat_id := range chat_ids {
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tg_events <- GenericMessage{chat_id, msg}
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}
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}
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type RealSleeper struct {
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duration time.Duration
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}
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func (self RealSleeper) Sleep(ch chan<- interface{}) {
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time.Sleep(self.duration)
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ch <- nil
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}
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func main() {
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var (
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wg sync.WaitGroup
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tg_events = make(chan GenericMessage)
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sleeper = RealSleeper{time.Second * 15}
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)
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satel_api_addr := flag.String("satel-addr", "", "Address that should be used to connect to the SATEL device")
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satel_api_port := flag.String("satel-port", "7094", "Port that should be used to connect to the SATEL device")
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chat_id_raw := flag.String("tg-chat-id", "", "Telegram Chat ID where to send updates. Use \",\" to specify multiple IDs.")
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flag.Parse()
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if len(*satel_api_addr) == 0 || len(*satel_api_port) == 0 || len(*chat_id_raw) == 0 {
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fmt.Println("Use --satel-addr=ADDR, --satel-port=PORT and --tg-chat-id=CHAT_ID command line flags to continue.")
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os.Exit(1)
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}
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chat_ids_strings := strings.Split(*chat_id_raw, ",")
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var chat_ids []int64
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for _, chat_id_str := range chat_ids_strings {
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chat_id, err := strconv.ParseInt(chat_id_str, 10, 64)
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if err != nil {
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fmt.Printf("Tried to use a non-int value for one of tg_chat_ids: %s. That's bad.", chat_id_str)
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os.Exit(1)
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}
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chat_ids = append(chat_ids, chat_id)
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}
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satel_addr := fmt.Sprintf("%s:%s", *satel_api_addr, *satel_api_port)
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satel_conn, err := net.Dial("tcp", satel_addr)
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if err != nil {
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panic(err)
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}
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s := satel.NewConfig(satel_conn, satel.Config{EventsQueueSize: 1000})
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bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_APITOKEN"))
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if err != nil {
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panic(err)
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}
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tgSender := TgSender{bot}
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go tg_sender_worker(tg_events, tgSender, &wg, sleeper)
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for e, ok := <-s.Events; ok; e, ok = <-s.Events {
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send_tg_message(tg_events, fmt.Sprintln("Change from SATEL: ", "type", e.Type, "index", e.Index, "value", e.Value), chat_ids)
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}
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close(tg_events)
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wg.Wait()
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}
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